Weed Instrument 2M13 Input Module 规格指南

下载
页码 2
POWER:  The 2M13 obtains its operating power
from the module interconnection bus.  The
operating power originates at the MUX Base
Module or from an EOTec 2000 power supply
(2A06, 2A16, 2A08 or 2A18)
CONTACT CLOSURE (DRY CONTACT)
INPUT: 
 The Channel 1 Input terminal block is
towards the bottom-front of the unit and the
Channel 2 Input terminal block is directly behind
and below Channel 1.  On both terminal blocks,
the individual screw terminal connections are
numbered from left-to-right as follows:
Terminal 1
no connection
Terminal 2
Dry Contact Input
Terminal 3
Dry Contact Input
Terminal 4
no connection
IMPORTANT NOTE:  Internally, the module’s
contact input terminals are not isolated and are
connected to the module bundle’s input supply
terminals.
Description
The Model 2M13, Contact Closure Input Module
is designed to accept two channels of switch or
relay (dry contact) input signal.  The input signals
are passed via the integrated housing
interconnection bus to the MUX Base Module
where they are multiplexed and converted to a
fiber optic signal.  The MUX Base Module at the
opposite end of the fiber link de-multiplexes the
signals and passes them to a Model 2M23,
Contact Closure, Relay Output Module for
conversion to a Form-C (SPDT) relay output
format.
Non-illuminated LED status indicators or LED
indicators that are red or flashing red can point to
problem areas of the individual modules of the
EOTec 2000 MUX system.
The upper LED indicator on each module is
illuminated green when operating power is present
at the module.  If this LED is not illuminated, verify
that power is applied, that the modules’
interconnection bus is fully seated at each module,
that the voltage levels and current ratings of the
power source are sufficient for operation and that
the polarities of the connections are correct.
Cycling the power will reset the units and restart
internal programming.
On the MUX Base Module, directly above the fiber
ports is a bi-color (red/green) LED status indicator.
When this LED is green, the MUX Base Module is
operating normally.  If this LED is illuminated
constant red, it is indicating that its receive optical
signal level is inadequate for system operation.
Verify the fiber optic cables are not broken, are
connected from TX to RX and are securely
fastened.  If this LED is flashing red it is indicating
duplicate or non matching I/O module addresses.
Verify that there is an address match between the
input module and its corresponding output module
and that no two modules on the same side of the
fiber link are set to the same address.
On the I/O modules, there are two channel status
LED indicators marked CH1 and CH2 that are
illuminated Green when input/output signals are
present.  If a channel status LED indicator is not
illuminated, verify that the input/output connections
are connected to the correct terminals and that the
polarities are also correct.  On the analog input
modules, measure the input signal levels and
ensure they are present and are at least 1mVDC
for 0 to 10VDC input module or 0.002mADC for 4
to 20mA input module.  These same levels on
each output of the analog output modules will
illuminate its corresponding channel status LED.
If you are still experiencing difficulty, contact the
factory for assistance.
System Troubleshooting Tips
Connections
Operational Settings
Use a small screwdriver to press on the latches
(indentations) at the top and bottom of the
housing.  Slide the housing open.
                            
A two position DIP switch (SW1) is used to set
the address of the module and it must match the
address of its mating module at the opposite end
of the fiber link.  Do not set two modules at the
same end of the fiber link to the same address
setting.  The 4 possible address settings are:
  
     DIP switch location
Close the housing by sliding it back together until
both the top and bottom latches "click" into place.
Address     SW1-1     SW1-2
     00           OFF        OFF
     01           OFF         ON
     10            ON         OFF
     11            ON          ON
2M12
1 2 3 4
1 2 3 4
CH 1
CH 2
1  No Connection
2  Dry Contact Input
3  Dry Contact Input
4  No Connection
CH 1 / CH 2 Terminals:
Contact Closure
2M13
Connections